Lawn mower



P. E. HERSCHEL. JR

June 1 1926.

LAWN MOWER .Filed Sept- 2, 1925 Patented June 1, 1926.-

time. kaiser 1 3L 33; orrnonm,immors, I

" feaws w r p Application filed' se' iemb'er 2; i 1925. Serial m. 54,023.;

- This invention relates to lawn mowers. a, The invention has special're fe'rence too-the combination of mainframe and wheel mein bers; special wheelconstruction to obtain tractor or relatively wide traction grip :of wheel members and the necessary relative arrangement of S11Ql1"WllGel' tread to the wheel. central body and to reinforcement means for the tread member renderedne'cesv sary because of wide relative spacing there- Fig. 2 is a sectional view'on the line 2.2

' of Fig. 1.

In the'above drawings, so much of the main frame asit is deemed necess'ary to illustrate includes a shaft member 10 held stationary in the mainframe. 11 is a hub member for a wheel centering frame fixed'to shaft 10. Thewheel centering frame is a part of the main frame, which includes a cutter carrying frame portion12 extend ng rearwardly, as in common practice, from shaft members 10 herein. The wheel. centering frame includes a center disk portion 13, and a peripheral rim 14 spacedfromdisk portion;13 and connectedrth'erewithr by a plurality of relativelyspaced connecting or, p

' mlnimlzmglabor in operating the same;

spoke members 15. p

A cross frame member 16 in conjunction with shaft 10 serves as a connector means between the frame members at either side of the lawnmower. 17is a cutter bar shaft supported in the main frame and is provided 'with cog member 18which is driven from the wheel members of the mower.

'Special reference is made to or loose soil conditions prevaihand are made also the gripping members'on the tractor faces of the wheels are narrowed and exaggerated in radial extensionas compared with ordinary mower wheel construction, to the end of enhancing wheels.

- .tion of the the wheel treadz members, one of which isshown. The-wheel members are specially designed for service" in lawn mower use inloc'alities wheresand grip utility of the' p 'theouter edgeof'the treadlmember;

Thevwheel' member --comprises. a central disk portion 19, an annulus 2O spacedfrom said disk and connected therewith by means connector'memb'ers 21, and a tread 'meinber 22 integrally onotherwise united to the annulus 20' atits inneredge'portion and exofa plurality of relatively spaced spoke or i tending outwardly flaterally therefrom an exaggerated distance over that of common lawn mowerf wheel"construction; 23 are which may be in form as herein disclosed, constitut ng gradually tapering members in} the 1 nature of angle blocks integrally or tion of thewheel.

reinforcing members'for the-wheel tread,

- f The wheelisprovided withhub meinberi 24 interiorlyrecessed, which recess, in connection with sleeve 25, serves as a means for receiving the outer ends of shaft 10.-in

thrust relation, and when said wheel is tively interlocked by means 1' not herein circumferentially arranged cog train 26 on the innerfaceofthe inner edge of annulus "20, thereby, establishinga co-operating relation as between the wheels and frame and driven, parts of the lawnmower.

- The main thought involved 'n the applicartion hereinistheladaptationof a lawn mower forusefinlo-osesoil, as sand,;to theend of of the annulus 20 withthe wheel centering frame, whereby a wheel is built with the framing of thecentral supporting web portread wholly atone side of said What I claim is: a

1'. A'lawn-mower wheel comprising a cen' tral'dislgda recessed hub formed integral withsaid diskand adapted to; receive one end of a shaft" spokes extending radially secured near its inner edge to said annulus,

and reinforcing'elemfents-formed upon the inner surfaceofthe tread member and tapering" uniformly 1 from said annulus to ,pr'operlyerelated to the frame they are'relaout} of the necessary relative arrangement from said disk, an annulus formed onthe l" outer ends of said spokes, a tread; member being curved at their outer ends, an annulus the annulus, and a tread member secured near its inner edge to said annulus and spaced therefrom, all theforegoing elements being formed integrally.

3. A wheel for lawn mowers, comprising a central disk, a recessed hub formed thereon and adapted to form a thrust bearing for a shaft, spokes extending radially from said disk, a relatively narrow annulus formed on the outer ends of said spokes, a gear element formed on the inner surface of said annulus, a relatively wide tread member secured near its inner edge to said annulus and spaced therefrom, and reinforcing elements formed upon the inner surface of the tread member.

4. A wheel'for lawn mowers, comprising 20 a central hub member, curved spokes radiating from said hub member, an annulus formed on the outer ends of said spokes, a ring gear formed on said annulus, a tread member secured nearone of its edges to 25 PAUL E. HERSGHEL, JR; 

